Improvement in gang-plows



. vrrn n; STATES ALBERT N. HUMPHREY, OF BRODHEAD, WISCONSIN.

IMPROVEMENT IN GANG-PLOWS.

Specification forming part of Letters Patent No. 136,062, dated February18, 1873.

To all whom it may concem Be it known that l, A. N. HUMPHREY, ofBrodhead, in the county of Green and State of Wisconsin, have invented anew and valuable Improvement in Sulky Gang-Flows; and do hereby declarethat the following is a full, clear, and exact description of theconstruction and operation of the same, reference being had to theannexed drawing making a part of this specification, and to the lettersand figures of reference marked thereon.

Figure 1 of the drawing is a representation of a top view of myinvention. Fig. 2 is a vertical section of my invention. Fig. 3 is adetail View of my invention.

My invention has relation to sulky gangplows; and it consists in theconstruction and novel arrangement of the draft or riding and plowframes, the devices for raising and lowerin g said frames together orthe plow-frames separatelyat the forward end to adjust the plows todifferent depths, the peculiar method of attaching the plows to theplow-frame; all substantially as and for the purpose specified.

Referring to the drawing, A represents the axle-tree, having its middlepart bent or sunk and shouldered to receive the rear end of thedraft-frame B, which is bolted directly to said axle-tree. The sides ofsaid frame are notched to fit down over said axle-tree. By thisarrangement the draft is strengthened and brought low, and the draft andplow frames allowed to work close together, thereby giving greatercompass to the depth of plowing. The frame B has attached to the innersurfaces of the side bars, at their forward ends, metallic plates 13,which project forward, and have vertical slots to receive a transverserod, B which, being secured to the under side of the plowframe 0,connects the two frames together at their forward ends. The rod B issecured to the frame 0 by means of loops, and serves as a pivot for theframe 0 to work upon. The upper parts of the plates B are cut to theform of segmental racks. Bell-crank levers Eare \pivoted to these plateson the outside, and connected, by means of links e, to the ends oflowered together at their forward ends.

- shown, pivoted to the levers E, and connected to the lugs d by meansof links (1 When the hand is taken from the lever E a spring, 11 throwsthe lever 01 back to its original position, and forces the lug into oneof the notches of the rack, where it remains until the lever is" againtaken hold of. It will be observed that the lever E and latch 01 areboth grasped at once with the one hand, and thereby controlled aseffectually as if both hands were used. When one only of the levers E isoperated one side only of the plow-frame is raised, and thus the plowsmay be adjusted to surface irregularities. The draft-pole F is pivotedat its rear end to one side of the frame B. A

bolt, e passing through the pole near the for-. ward end of the frame B,also passes through a slotted plate, 0 secured to the adjacent side ofthe frame. When the nut on this bolt is loosened the two frames B (J maybe raised or The drivers seat G is supported by standards H at tached tothe frame 0. A bent lever, H, is pivoted to the board of the driversseat, and extends forward. At its rear end the lever is connected to theframe 0 by means of a coupling, L By lowering the forward end of saidlever the plows may be raised entirely from the ground. K designates ahook or catch for holding the forward end of the lever down. Lrepresents the plows, the standards M of which risevertically, and,being bifurcated and spread open at their upper ends, are each securedto its appropriate frame-bar by means of two bolts. Diagonal braces Nextend from the mold-boards to the top of the bars of the frame, and areeach secured thereto by means of the hind bolt of the bifurcatedstandard. The bars of the frame 0 are of unequal length to allow theplows to be properly arranged for gang-plowing. 0 represents thedouble-tree of the draft attachments, holding the two single-trees P,and attached to the short arm of the evener Q, to the long arm of whichis attached another single-tree marked R. The

These pawls engage with the evener is pivoted to a clevis or pair ofplates, S S, the upper one of which runs back, and is secured to theaxle-tree, while the under one is secured to a transverse bar, T, at theforward and under part of the frame B, as shown.

The draft is from three distinct parts of the axle-tree-from the middlepart, through the plate S, and from nearer the ends by means of thedraft-frame.

WVh-at I claim as my invention, and desire to secure by Letters Patent,is-

1. The combination and arrangement of the pivoted inner frame 0 carryingthe plows L and transverse rod. B the outer draftframe sin gle-trees PPR, substantially as described.

In testimony that I claim the above I have hereunto subscribed my namein the presence of two witnesses.

ALBERT NORMAN HUMPHREY.

Witnesses:

NATHAN P. McNI'rT, NAPOLEON ENFIELD.

